activity
20182025
most citedDeciphering the atmosphere of HAT-P-12b: solving discrepant results

63 citations · 256 across the 13 of their papers we have counts for

collaborators

13 papers

astro-ph.EP2025

Elemental abundance pattern and temperature inversion on the dayside of HAT-P-70b observed with CARMENES and PEPSI

B. Guo, F. Yan, Th. Henning +25

Ground-based high-resolution spectroscopy has identified various chemical species in the atmospheres of ultra-hot Jupiters, including neutral and ionized metals, providing key insi…

astro-ph.EP2024

The PEPSI Exoplanet Transit Survey (PETS). V: New Na D transmission spectra indicate a quieter atmosphere on HD 189733b

E. Keles, S. Czesla, K. Poppenhaeger +23

Absorption lines from exoplanet atmospheres observed in transmission allow us to study atmospheric characteristics such as winds. We present a new high-resolution transit time-seri…

astro-ph.EP2023★ 1 cited

The PEPSI Exoplanet Transit Survey (PETS) IV: Assessing the atmospheric chemistry of KELT-20b

Sydney Petz, Marshall C. Johnson, Anusha Pai Asnodkar +11

Most ultra hot Jupiters (UHJs) show evidence of temperature inversions, in which temperature increases with altitude over a range of pressures. Temperature inversions can occur whe…

astro-ph.EP2022★ 32 cited

The PEPSI Exoplanet Transit Survey (PETS). II. A Deep Search for Thermal Inversion Agents in KELT-20 b/MASCARA-2 b with Emission and Transmission Spectroscopy

Marshall C. Johnson, Ji Wang, Anusha Pai Asnodkar +19

Recent observations have shown that the atmospheres of ultra hot Jupiters (UHJs) commonly possess temperature inversions, where the temperature increases with increasing altitude.…

astro-ph.EP2022★ 34 cited

The PEPSI Exoplanet Transit Survey (PETS) I: Investigating the presence of a silicate atmosphere on the super-Earth 55 Cnc e

Engin Keles, Matthias Mallonn, Daniel Kitzmann +26

The study of exoplanets and especially their atmospheres can reveal key insights on their evolution by identifying specific atmospheric species. For such atmospheric investigations…

astro-ph.EP2021★ 8 cited

Spectral signature of atmospheric winds in high resolution transit observations

Engin Keles

The study of exoplanet atmospheres showed large diversity compared to the planets in our solar system. Especially Jupiter type exoplanets orbiting their host star in close orbits,…